Q. If both length of strings is equal then concatenate them otherwise copy reverse of first string into second string ?

THE OUTPUT WOULD BE

#include<stdio.h>
#include<conio.h>
#include<string.h>
  void main( )
  {   clrscr( );
  char s1[25],s2[25],s3[25];
  int l1,l2,i;
  printf("Enter first string=");
  gets(s1);
  printf("Enter second string=");
  gets(s2);
  l1=strlen(s1);
  l2=strlen(s2);
  if(l1==l2)
  printf("Conctenate string=%s",strcat(s1,s2));
  else
  { for(i=l1-1;i>=0;i--)
     s3[l1-1-i]=s1[i];
     s3[l1]='\0';
     printf("Reverse of first string=%s",strcpy(s2,s3));
  }
  getch( );
  }